Home / 3,825.41-5,271.91-2,984.78

Finding the Fourth Proportional to 3,825.41, 5,271.91 and 2,984.78

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Solution

The fourth proportional to 3,825.41, 5,271.91 and 2,984.78 is: 4,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.41 : 5,271.91 = 2,984.78 : x
  2. Step 2: Convert to fraction form
    3,825.41/5,271.91 = 2,984.78/x
  3. Step 3: Cross multiply
    3,825.41x = 5,271.91 × 2,984.78
  4. Step 4: Simplify right side
    3,825.41x = 15,735,491.53
  5. Step 5: Solve for x
    x = 15,735,491.53/3,825.41
  6. Step 6: Final answer
    x = 4,113.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.